Redshift ShockStop Suspension Seatpost. Features: Ultra responsive suspension seatpost provides 35mm of bump eating comfort Minimal, subtle design blends seamlessly with the aesthetic of modern gravel, road, and e-bikes Optimized linkage geometry provides ultra-responsive suspension Infinitely adjustable preload stiffness adjustments Swappable springs included for different rider weights Rear offset: 7mm Simple, two-bolt saddle clamp with infinite tilt adjustment 6061 T6 aluminum post with 7075 T6 aluminum linkages and saddle clamp. 497g Specs: Diameter:27.2mm Length:350mm Color:black